Societe Nationale des Petroles d'Aquitaine
26Patents
0Active
26Granted
33Portfolio score
Filing activity: Aug 21, 1969 → Jun 8, 1977
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4003243A | Method of analysis by liquid-phase chromatography | Physics | 25 | Expired |
| US3986859A | Synergic compositions for the curative treatment of plant deficiencies | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4041768A | Device for measuring the mass of particles of an aerosol per volume unit | Physics | 19 | Expired |
| US3970468A | Sulfur emulsion in bituminous material | Chemistry; Metallurgy | 16 | Expired |
| US4106084A | Means for controlling the electric current density of a high tension direct current source | Electricity | 16 | Expired |
| US3954665A | Catalyst for the dimerization of diolefins using the reductive properties of metal carbonyls | Chemistry; Metallurgy | 12 | Expired |
| US4011924A | Device for producing mechanical waves | Physics | 12 | Expired |
| US3961015A | Combined hydrolysis and absorption process and apparatus therefor | Performing Operations; Transporting | 12 | Expired |
| US3949016A | Method for copolymerizing monomers of different types and polymer blends contain the copolymer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US3956730A | Seismic exploration | Physics | 10 | Expired |
| US3958943A | Process to purify gas containing hydrogen sulphide by means of amines | Chemistry; Metallurgy | 9 | Expired |
| US4002704A | Carburetor | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4022175A | Carburettor for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US3981379A | Device for emitting mechanical waves | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4108866A | Sulphoxides | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4000226A | Carburettor for an internal combustion engine | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4027084A | Polymeric diphosphorous coordinates and their metal derivatives | Chemistry; Metallurgy | 4 | Expired |
| US3999574A | Hydraulic safety stop-valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US3960666A | Preparation of an enzyme-cellulose complex | Chemistry; Metallurgy | 3 | Expired |
| US3939129A | Process for the preparation of random copolymers of mono-olefins or of mono-olefins and unconjugated dienes with lactams with substitution on the nitrogen atom by an unsaturated radical | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4126482A | Thiol polyesters | Chemistry; Metallurgy | 1 | Expired |
| US3979959A | Appliance for measuring pressure | Physics | 1 | Expired |
| US3949017A | New Process for grafting of plastics materials | Chemistry; Metallurgy | 0 | Expired |
| US3933855A | Production of organic sulphoxides | Chemistry; Metallurgy | 0 | Expired |
| US3947430A | Copolymers of olefins or olefins and non-conjugated dienes with unsaturated furan and/or thiophene derivatives | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.